dream fragment

did a long wbtb this morning 730-900 and woke up with that vague memory of having an amazing dream yet absolutely nothing coming to me at the time. hours later i remember the most amazing part of it. i was just driving locally and went through a local town (st albans). its an old roman town (verulamium) and it was like i was driving around it during roman times. there is a cathedral there now, but in the dream it was attached to this amazing vatican like mass of official looking buildings. it was probably all a bit too fancy to be like roman buildings actually were, but just the scale and the grandness of it all were so impressive. it was all enclosed and the road went straight through the complex through loads of arches and tunnels. the last thing i remember was driving through a tunnel and down into a labrynth type thing