diff --git a/pybana/translators/elastic/__init__.py b/pybana/translators/elastic/__init__.py
index af76bf5..468bcf1 100644
--- a/pybana/translators/elastic/__init__.py
+++ b/pybana/translators/elastic/__init__.py
@@ -10,9 +10,22 @@
 from .filter import FilterTranslator
 from .utils import SearchListProxy
 
+
 __all__ = ("ElasticTranslator", "FilterTranslator")
 
 
+class SignificantTerms(elasticsearch_dsl.query.Terms):
+    name = "significant_terms"
+
+
+class TopMetrics(elasticsearch_dsl.aggs.TopHits):
+    name = "top_metrics"
+
+
+elasticsearch_dsl.query.Query._classes[SignificantTerms.name] = SignificantTerms
+elasticsearch_dsl.aggs.Agg._classes[TopMetrics.name] = TopMetrics
+
+
 class ElasticTranslator:
     def __init__(self, using):
         self._using = using
diff --git a/pybana/translators/elastic/buckets.py b/pybana/translators/elastic/buckets.py
index 2fbd755..6128781 100644
--- a/pybana/translators/elastic/buckets.py
+++ b/pybana/translators/elastic/buckets.py
@@ -160,9 +160,7 @@ def translate(self, agg, state, context, field):
         }
 
 
-class TermsBucket(BaseBucket):
-    aggtype = "terms"
-
+class BaseTermsBucket(BaseBucket):
     def translate(self, agg, state, context, field):
         orderby = agg["params"]["orderBy"]
         aggs = {agg["id"]: agg for agg in state["aggs"]}
@@ -178,6 +176,20 @@ def translate(self, agg, state, context, field):
         }
 
 
+class TermsBucket(BaseBucket):
+    aggtype = "terms"
+
+
+class SignificantTermsBucket(BaseBucket):
+    aggtype = "significant_terms"
+
+    def translate(self, agg, state, context, field):
+        ret = agg["params"]
+        if field and field.get("scripted"):
+            ret["valueType"] = field["type"]
+        return ret
+
+
 TRANSLATORS = {
     translator.aggtype: translator
     for translator in (
@@ -187,6 +199,7 @@ def translate(self, agg, state, context, field):
         HistogramBucket,
         RangeBucket,
         TermsBucket,
+        SignificantTermsBucket,
     )
 }
 
diff --git a/pybana/translators/elastic/metrics.py b/pybana/translators/elastic/metrics.py
index 205d74f..e305518 100644
--- a/pybana/translators/elastic/metrics.py
+++ b/pybana/translators/elastic/metrics.py
@@ -131,13 +131,35 @@ def translate(self, proxy, agg, state, field):
         params = agg["params"]
         proxy.metric(
             agg["id"],
-            "top_hits",
+            self.aggtype,
             sort={params["sortField"]: {"order": params["sortOrder"]}},
             size=params["size"],
             _source=agg["params"]["field"],
         )
 
 
+class TopMetricsMetric(BaseMetric):
+    """
+    Translator for top_metrics metric.
+
+    Careful, this metric is partially supported:
+    - date fields are not handled.
+    - scripted fields are not handled.
+    """
+
+    aggtype = "top_metrics"
+
+    def translate(self, proxy, agg, state, field):
+        params = agg["params"]
+        proxy.metric(
+            agg["id"],
+            self.aggtype,
+            sort={params["sortField"]: {"order": params["sortOrder"]}},
+            size=params["size"],
+            metrics={"field": agg["params"]["field"]},
+        )
+
+
 TRANSLATORS = {
     translator.aggtype: translator
     for translator in (
@@ -153,6 +175,7 @@ def translate(self, proxy, agg, state, field):
         StdDevMetric,
         SumMetric,
         TopHitsMetric,
+        TopMetricsMetric,
     )
 }
 
diff --git a/pybana/translators/vega/metrics.py b/pybana/translators/vega/metrics.py
index 0b93cc8..c259842 100644
--- a/pybana/translators/vega/metrics.py
+++ b/pybana/translators/vega/metrics.py
@@ -109,6 +109,23 @@ def flatten(value):
         return ", ".join(map(str, values))
 
 
+class TopMetricsMetric(BaseMetric):
+    """
+    Metric for top_metrics.
+    """
+
+    aggtype = "top_metrics"
+
+    def contribute(self, agg, bucket, response):
+        hit = bucket[agg["id"]]["top"][0]
+        value = (
+            hit["metrics"][agg["params"]["field"]]
+            if agg["params"]["field"] in hit["metrics"]
+            else None
+        )
+        return value
+
+
 VEGA_METRICS = {
     metric.aggtype: metric
     for metric in [
@@ -122,5 +139,6 @@ def flatten(value):
         StdDevMetric,
         SumMetric,
         TopHitsMetric,
+        TopMetricsMetric,
     ]
 }