diff --git a/src/activitystream/object/place.rs b/src/activitystream/object/place.rs
new file mode 100644
index 0000000..9c63f35
--- /dev/null
+++ b/src/activitystream/object/place.rs
@@ -0,0 +1,17 @@
+pub trait Place : super::Object {
+	fn accuracy(&self) -> Option<f64> { None }
+	fn altitude(&self) -> Option<f64> { None }
+	fn latitude(&self) -> Option<f64> { None }
+	fn longitude(&self) -> Option<f64> { None }
+	fn radius(&self) -> Option<f64> { None }
+	fn units(&self) -> Option<&str> { None }
+}
+
+pub trait PlaceMut : super::ObjectMut {
+	fn set_accuracy(&mut self, val: Option<f64>) -> &mut Self;
+	fn set_altitude(&mut self, val: Option<f64>) -> &mut Self;
+	fn set_latitude(&mut self, val: Option<f64>) -> &mut Self;
+	fn set_longitude(&mut self, val: Option<f64>) -> &mut Self;
+	fn set_radius(&mut self, val: Option<f64>) -> &mut Self;
+	fn set_units(&mut self, val: Option<&str>) -> &mut Self;
+}
diff --git a/src/activitystream/object/profile.rs b/src/activitystream/object/profile.rs
new file mode 100644
index 0000000..2099b1e
--- /dev/null
+++ b/src/activitystream/object/profile.rs
@@ -0,0 +1,8 @@
+pub trait Profile : super::Object {
+	// not a Node because it's always embedded and one
+	fn describes(&self) -> Option<impl super::Object> { None::<serde_json::Value> }
+}
+
+impl Profile for serde_json::Value {
+
+}