"Not a palace"
The place has gone or never existed. A CoMaps user reported that the POI was visible on the map (see snapshot date below), but was not found on the ground.
OSM snapshot date: 2025-06-22T05:04:15Z
POI name: Kufun Game Đổi Thưởng
POI types: historic-castle-palace
#CoMaps android

In context of overlay "Addresses" – nguyệt home (Castle) – osm.org/node/11890769469 via StreetComplete 61.1:

Not a castle

"Not a castle"
The place has gone or never existed. A CoMaps user reported that the POI was visible on the map (see snapshot date below), but was not found on the ground.
OSM snapshot date: 2025-06-22T05:04:15Z
POI name: nguyệt home
POI types: historic-castle
#CoMaps android

Unable to answer "Is this still here?" – Trường Cao đẳng Nghề tỉnh Bà Rịa-Vũng Tàu - cơ sở 2 (College Grounds) – osm.org/way/225078665 via StreetComplete 60.1:

Destroyed for a road

In context of overlay "Places" – Sen (Vietnamese Restaurant) – osm.org/node/12566707097 via StreetComplete_ee 60.0:

Double listed.

Unable to answer "How many car lanes does this road have?" – Gầm Cầu Cá Trê Lớn (Primary Link) – osm.org/way/1252262898 via StreetComplete 60.0:

Road goes both directions

In context of overlay "Places" – Travel Agency – osm.org/node/4809950621 via StreetComplete 60.0:

Doesn't exist

In context of overlay "Places" – Linh (Cafe) – osm.org/node/10296577020 via StreetComplete 60.0:

Double and at wrong position

In context of overlay "Places" – Restaurant – osm.org/node/4453282589 via StreetComplete 59.3:

Doesn't exist anymore.